On Fri, 14 May 2021 22:51:17 +0200
Daniel Bristot de Oliveira [off-list ref] wrote:

+static void osnoise_tracer_start(struct trace_array *tr)
+{
+	int retval;
+
+	if (osnoise_busy)
+		return;
+	

I need more time to look at this patch, but "git show" points out that
there's a spurious tab in the above line.

-- Steve

+	osn_var_reset_all();
+
+	retval = osnoise_hook_events();
+	if (retval)
+		goto out_err;